Functional component for influencing tank ventilation and arrangement of a functional component for influencing tank ventilation on an intake pipe

ABSTRACT

A functional component for influencing a tank ventilation of a fuel tank, functionally connected to an internal combustion engine, having a main body, wherein at least one flow channel for guiding fluid from an inlet side to an outlet side is formed in the main body, wherein at least one component for creating a clip connection of the functional component to an intake pipe is formed on the main body. The invention also relates to an arrangement of a functional component for influencing a tank ventilation of a fuel tank, functionally connected to an internal combustion engine, on an intake pipe.

This nonprovisional application claims priority under 35 U.S.C. § 119(a)to German Patent Application No. 10 2018 109 412.4, which was filed inGermany on Apr. 19, 2018, and which is herein incorporated by reference.

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to a functional component for influencingtank ventilation of a fuel tank, functionally connected to an internalcombustion engine, in particular in motor vehicles. The inventionfurther relates to an arrangement of a functional component forinfluencing tank ventilation on an intake pipe.

Description of the Background Art

A coupling device for conduits conveying hydrocarbon liquids or vaporsis known from DE 10 2015 003 792 A1, which corresponds to U.S. Pat. No.9,739,403, wherein conduits can be tank ventilation conduits. Thecoupling device is intended to be used for creating a connection betweena pipe-shaped insert component and a sleeve-like coupling body. In thisrespect, the coupling device is merely a connecting element which,moreover, does not fulfill any further function, such as, e.g., aventing function or a valve function. The coupling device comprises acoupling body with a connecting-piece receiving section and a lockingmember. The coupling device is thus designed in two parts and isintended to enable the simplest possible production out of plastic byinjection molding. The locking member has radially inwardly directed,elastically displaceable locking latches, which work together with aprojection of a connecting piece to be inserted and counteract adisconnection of the connecting piece from the coupling device. Thisresults in the mounted state in a three-piece assembly comprising acoupling body, locking member, and connecting piece.

To influence the tank ventilation of a fuel tank functionally connectedto an internal combustion engine, especially in motor vehicles, valvesand/or Venturi nozzles are used in practice, via which the amount ofpurge gas for the tank ventilation or the amount of fuel vapors to besupplied to an intake pipe, and/or the time period for carrying out thetank ventilation are adjustable. It is known from practice to weld suchtank ventilation functional components to an intake pipe.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide afunctional component for influencing tank ventilation of a fuel tank,functionally connected to an internal combustion engine, and anarrangement of a functional component on an intake pipe of an internalcombustion engine, which enable a particularly simple and cost-effectivemounting on the intake pipe. In particular, the invention relates tofunctional components in the form of tank ventilation valves and/orVenturi nozzles and arrangements with such functional components.

A functional component of the invention for influencing tank ventilationof a fuel tank, functionally connected to an internal combustion engine,for example, of a fuel tank of a motor vehicle, comprises a main body,wherein at least one flow channel for guiding fluid from an inlet sideto an outlet side is formed in the main body. The amount of fuel vaporsfrom the fuel tank, which are supplied to the intake pipe, and theduration of tank ventilation phases in particular are controlled orregulated in terms of time and/or amount by means of the functionalcomponent. Furthermore, at least one component adapted to create a clipconnection of the functional component to an intake pipe is formed onthe main body.

The connection between the functional component takes place inparticular in such a way that the inlet side or outlet side of the mainbody is connected to the intake pipe so that fluid can be introducedthrough the flow channel into the intake pipe. For sealing between themain body and the intake pipe, a sealing element, for example, a sealingring, is disposed in particular on the intake pipe and/or on the mainbody. Preferably, the functional component is directly connected to anintake hood as part of the intake pipe by means of the clip connection.The intake hood forms in particular a part of the intake pipe of theinternal combustion engine, on which damping elements and/or resonatorsare disposed, which serve to reduce the flow noise and/or vibrationnoise of the intake pipe. The intake hood is connected in particularupstream on an inflow side to a clean air duct. As an alternative or inaddition thereto, the intake hood is connected in particular downstreamon an outflow side to a compressor of an exhaust gas turbocharger.

A clip connection enables a time-efficient, simple and, above all,tool-free mounting of the functional component on the intake pipe. It isalso advantageous that no further components are needed to create aconnection, such as, for example, screws, rivets, or other separatecoupling elements. In addition, a relatively expensive and complicatedwelding of the functional component to the intake pipe can be omitteddue to the clip connection. Welding has the further disadvantage thatthe components to be welded usually must be made from the same materialsor at least materials that can be joined to one another by welding.Because functional components are often produced in practice fromhigh-quality and thus rather expensive plastic, such as, for example,polyacrylamide (PA), in the case of a desired welding, it follows thatthe intake pipe also has to be made of a rather expensive plastic. Therealization of a suitable connection by means of a clip connection makesit possible to produce the intake pipe of any and in particular of aless expensive plastic than, for example, out of polypropylene (PP).

Particular advantages of the invention result if the main body is formedat least as part of a Venturi nozzle or for receiving a Venturi nozzle.Such a Venturi nozzle has in particular a first flow channel with afirst inlet side and an outlet side, as well as a second flow channelwith a second inlet side. In this case, the second flow channel usuallyopens into the first flow channel or vice versa. In an arrangement ofthe invention, the first inlet side of the first flow channel isconnected in particular to an intake pipe downstream of a compressor ofa turbocharger, in particular to the so-called pressure tube, and theoutlet side is connected to the intake pipe upstream of the compressor.The second inlet side in this case is fluidically connected via a tankvent line to the fuel tank. Depending on the respective mass flow, adifferent sized negative pressure is generated in the second flowchannel by controlling and/or regulating the mass flow through the firstflow channel, as a result of which the ventilation of the fuel tank isinfluenced.

It is also advantageous if the main body is formed at least as part of avalve or for receiving a valve. A valve of this kind can also be used toinfluence a tank ventilation of a fuel tank, in particular if the inletside of the flow channel is fluidically connected to the fuel tank andthe outlet side is fluidically connected to an intake pipe. The crosssection of the flow channel is narrowed or completely closed by thevalve as needed, so that if required, control and/or regulation of thetank ventilation are possible. For this purpose, the valve is preferablyprovided with a pneumatic, hydraulic, and/or electrical connection,which serves to drive the valve. Alternatively or in addition thereto,an additional, externally driven pump can be provided to convey fluidthrough the flow channel.

At least one clip can have at least one detent contour is formed on themain body. For example, two, three, four, or more clips of this kind canbe formed. In particular, a clip or a plurality of clips are configuredto work together with a corresponding clip mount in the intake pipe.

The features of the at least one clip as described below can apply, butnot necessarily, to multiple clips, if two, three, four, or more clipsare provided.

The at least one clip can be formed resilient and allows a resilientcompression and rebound by a flexurally elastic design, in particular ina direction transverse to a connection direction or insertion direction.In this case, the direction in which the clip has to be moved in orderto be inserted into a corresponding clip mount and thus brought into itslocking position is designated as the connection direction or insertiondirection. The at least one clip preferably has a clip body and a cliphead with the detent contour. The clip body preferably has a width of0.5 mm to 2 mm, and preferably of 1 mm to 1.5 mm, extending transverseto the longitudinal extent of the clip, in order to provide a suitablespring elasticity.

In the present case, a detent contour can be, for example, the formationof an abutment face on a clip, which extends transverse to theconnection direction or insertion direction, in particular perpendicularto the connection direction or insertion direction. Preferably, anundercut with a blocking surface extending transverse to the insertiondirection is formed in the corresponding clip mount; the blockingsurface corresponds to the abutment face and interacts such that theclip is locked and loosening of the clip connection is prevented. A clipof this kind with a detent contour represents a particularly simplecomponent, which is intuitive to use, for creating the clip connection.

In relation to a clip or a plurality of clips, it is particularlyadvantageous if at least one cover structure is formed on the main bodyof a functional component with the clip or on the main body of afunctional component with a clip mount such that a loosening actuationof the clip in an inserted locking position is made inaccessible by thecover structure and thus prevented. A cover structure of this kind is inparticular formed integrally with the main body of the clip or with themain body of the clip mount. In the case of formation on the main bodyof the clip, the cover structure extends in particular at least overpart of the clip length extending in the insertion direction.

A cover structure can be formed in particular plate-shaped, i.e., have athickness which is much smaller than the length and the width, inparticular less than 20 percent, less than 10 percent, or less than 5percent of the respective smaller dimension of the length or width.

In particular, the cover structure can be designed such that it projectstransverse and longitudinally to the insertion direction with respect toa clip head with the detent contour. If the main body itself has a coverstructure, the clip connection is particularly secure because the coverstructure reliably prevents actuation of the clip in an inserted lockingposition, and thus an inadvertent and non-destructive loosening of theclip from the clip mount is effectively prevented. The clip connectionis preferably designed as a non-detachable connection, i.e., designedsuch that after a one-time creation of the clip connection it is notloosened again at least non-destructively with the help of a tool. Thisdesign has the advantage that a factory assembly at a vehiclemanufacturer or automotive supplier with functional testing of thesealing function, especially in the mounted state in a motor vehicle,can be designed usually for the life of the motor vehicle and adeliberate or accidental loosening at a motor vehicle repair shop can bereliably avoided. Thus, it can be ruled out that a complete or partialloosening of a connection and/or improper reassembly of a loosenedconnection lead to minor leaks, which cannot be reliably detected bymeans of diagnostic devices available in motor vehicles, in particularby a so-called on-board diagnosis (OBD). The cover structure in thiscase ensures that the connection is not unintentionally loosened ormanipulated, and a partial or only slight loosening of the clipconnection is reliably prevented.

As already indicated, as an alternative or in addition to a clip, atleast one clip mount for a corresponding clip disposed on the intakepipe can be formed on the main body. Such a clip mount is designed inparticular in the form of an indentation or opening in the main body, inparticular such that a corresponding clip can be inserted completely orpartially into the clip mount. The clip mount is in particular designedsuch that it has an undercut with a blocking surface which workstogether with a detent contour of the corresponding clip and thuscounteracts a pulling of the clip out of the clip mount.

In particular, a plurality of clips and/or clip mounts are formed on themain body, preferably at least two, three, four, or more clips and/orclip mounts. The clips or clip mounts are preferably distributed overthe extent of the main body, particularly preferably distributedapproximately uniformly over the extent. Preferably, two, three, four,or more clips and/or clip mounts are provided on the functionalcomponent in order to fix the functional component in a predeterminedposition and rotationally secured with respect to the intake pipe and todistribute the connection forces, acting on the clips, over a pluralityof clips.

The clip mount on the main body can be designed such that the clipconnection between the functional component and the intake pipe isdesigned as a non-separable connection; i.e., the connection cannot beloosened non-destructively, preferably also not with the help of astandard tool and also not with the help of a special tool. This ispreferably realized in that the detent contour is completely covered bythe clip mount in an inserted locking position and it also cannot beachieved by means of tools that the clip connection can be loosenedagain. Because demolding openings for demolding the undercut in the clipmount are necessary in part, an additional cover component is optionallyprovided, which closes the demolding openings and covers the clipcompletely with the detent contour in the clip mount.

The main body can be formed in two parts. In particular, the main bodyhas an upper part and a lower part, which are preferably connected toone another by means of welding, gluing, screwing, and/or by means of afurther clip connection. The parting plane between the upper part andthe lower part of the main body is located in particular in the regionof a clip mount formed on the main body. As a result, undercuts whichare difficult to demold, in particular in the area of the clip mount,can be avoided, as a result of which a cost-effective production of themain body in the plastic injection molding process can take placedespite undercuts to be realized.

The mold parting plane for the production of the upper part and/or lowerpart can be located in the region of the blocking surface of the clipmount, in particular such that the blocking surface extends in thedirection of the mold parting plane and is itself part of the moldparting plane.

The invention also relates to an arrangement of a functional componentfor influencing tank ventilation of a fuel tank, functionally connectedto an internal combustion engine, on an intake pipe of the internalcombustion engine. This functional component is, in particular, afunctional component as described above and/or a separately claimedfunctional component.

A corresponding component for creating a clip connection can be formedon the functional component and on the intake pipe of the internalcombustion engine of an arrangement of the invention, and the functionalcomponent is clipped directly to the intake pipe. The functionalcomponent is in particular a valve or a Venturi nozzle. Direct clippingcan mean that no further connecting elements are placed or interposedbetween the functional component and the intake pipe, for example,coupling elements that are manufactured separately and are to be mountedseparately. As already explained above, clipping of the functionalcomponent to the intake pipe makes possible a particularly simpleassembly and a cost-effective production of the intake pipe from arelatively low-priced plastic, whereas the functional component can befabricated of any desired, higher-quality plastic.

The intake pipe can have at least one clip mount which, in addition toan insertion opening for a corresponding clip, has a demolding openingextending transverse to the insertion direction, in particular ademolding opening extending perpendicular to the insertion direction. Ifa plurality of clip mounts are provided, the demolding openings can allextend in the same direction, for example, all perpendicular orsubstantially perpendicular to the insertion direction. A demoldingopening is required in particular when an undercut formed in the clipmount is to be easily demoldable with the blocking surface by means ofplastic injection molding.

To prevent loosening of the clip connection between the functionalcomponent and the intake pipe via the demolding openings, the demoldingopening, especially in the case of an inserted clip in the lockingposition, is completely closed by a cover structure disposed on thefunctional component such that the clip in the locking position is nolonger accessible via the demolding opening for loosening from thelocking position. For this purpose, the cover structure preferablyextends over the entire cross-sectional area of the demolding opening.Thus, in particular, a clip connection secured against unintentional orundesired loosening can be produced, in particular a clip connectionthat cannot be loosened again in a non-destructive manner, preferablyalso not with a standard tool or a special tool.

Further scope of applicability of the present invention will becomeapparent from the detailed description given hereinafter. However, itshould be understood that the detailed description and specificexamples, while indicating preferred embodiments of the invention, aregiven by way of illustration only, since various changes, combinations,and modifications within the spirit and scope of the invention willbecome apparent to those skilled in the art from this detaileddescription.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from thedetailed description given hereinbelow and the accompanying drawingswhich are given by way of illustration only, and thus, are notlimitative of the present invention, and wherein:

FIG. 1 is a schematic overview of an arrangement of a functionalcomponent of the invention;

FIG. 2 shows an embodiment of an arrangement of the invention with anembodiment of a functional component of the invention in the form of avalve in a first perspective view;

FIG. 3 shows the embodiment from FIG. 2 without the valve in a furtherperspective view;

FIG. 4 shows the area marked with IV in FIG. 2 in an enlargedrepresentation in a schematic sectional representation;

FIG. 5 shows the area marked with V in FIG. 4 in an enlargedrepresentation;

FIG. 6 shows an embodiment of an arrangement of the invention with anembodiment of a functional component of the invention in the form of aVenturi nozzle in a perspective view;

FIG. 7 shows only the Venturi nozzle from FIG. 6 in a separaterepresentation in a side view;

FIG. 8 shows an embodiment of an arrangement of the invention with anembodiment of a functional component of the invention in the form of aVenturi nozzle in an exploded perspective representation;

FIG. 9 shows the embodiment from FIG. 8 in a perspective view;

FIG. 10 shows the area marked with X in FIG. 9 in a sectionalrepresentation;

FIG. 11 shows the area of the Venturi nozzle marked with XI from FIG. 8in an enlarged representation in a view from below; and

FIG. 12 shows the area of the intake pipe marked with XII in FIG. 8 inan enlarged representation.

DETAILED DESCRIPTION

FIG. 1 shows a schematic view of an arrangement of a functionalcomponent 10, shown only schematically, on an intake pipe 12. On the farleft in FIG. 1, a fuel tank 14 is shown, which is shown schematically asa block and which is functionally connected to functional component 10via a tank vent line 16. Functional component 10 can be either a valveor a Venturi nozzle, as will be explained in more detail below.Functional component 10 is connected fluidically and thus in aflow-conducting manner to intake pipe 12. Intake pipe 12 extends herebetween an air filter 22 and a compressor 24 of an exhaust gasturbocharger.

In connection with the following FIGS. 2 to 10, three differentembodiments of arrangements and functional components 10 on an intakepipe 12 are explained below.

A first embodiment of an arrangement with a first embodiment of afunctional component 10 is shown in FIGS. 2 to 4. Said functionalcomponent 10 is a valve 18, which is connected directly to an intakehood 26. In this case, intake hood 26 forms part of intake pipe 12.During operation of an internal combustion engine, intake air flowsthrough intake pipe 12 in the direction of the arrows leading out ofintake pipe 12.

Intake hood 26 is connected upstream to a clean air pipe 28. Acompressor of an exhaust gas turbocharger connects downstream to intakehood 26. In addition, a plurality of resonators, which are used fordamping vibrations, are provided on intake hood 26 under cover 30. Theseresonators are optional elements which need not be present for therealization of the invention.

Functional component 10, here in the form of valve 18, has a main body32. A flow channel which leads from an inlet side 34 to an outlet side36, is formed in main body 32. In the present case, inlet side 34 isconnected in a flow-conducting manner to tank vent line 16 and to a fueltank 14 disposed upstream thereof. Outlet side 36 is directly connectedto intake hood 26. A sealing ring 38 is disposed on main body 32 offunctional component 10 in the region of outlet side 36 so that theconnection between outlet side 36 and intake hood 26 is reliably andpermanently sealed (cf. FIG. 4). Further, an electrical connection 40,via which valve 18 can be controlled, is provided on main body 32,wherein in particular it is possible to switch between an open positionand a closed position. It is optionally also possible that a pluralityof open positions are provided with differently sized flow crosssections.

The connection between intake hood 26 and valve 18 is realized in thepresent case by means of a clip connection. For this purpose, bothintake hood 26 and valve 18 have a component 42 for creating the clipconnection. As can be seen in FIG. 3, intake hood 26 in the present casehas three clips 44 as such component 42. Intake hood 26 is designedcam-like in the region of the three clips 44 and clips 44 are arrangeddistributed approximately uniformly over the extent of this cam-likearea. It can be clearly seen in FIGS. 4 and 5 that clips 44 comprise aclip body 46 and a clip head 48, wherein clip head 48 has a detentcontour 50 with an abutment face 52. Clip mounts 54 corresponding toclips 44 are formed in the form of openings on main body 32 of valve 10as component 42. Clip mounts 54 each have an undercut 56 with a blockingsurface 58.

To create the clip connection, clips 44 are inserted into thecorresponding clip mounts 54 in insertion direction E through aninsertion opening 60. Clips 44 are formed resilient and in the presentcase spring transverse to insertion direction E first radially inward,in relation to the insertion axis, and after reaching the lockingposition in the region of undercuts 56 radially outward again. Thelocking position can be clearly seen in FIGS. 4 and 5. Loosening of theclip connection is prevented by the interaction of abutment face 52 andblocking surface 58.

In the present case, main body 32 of valve 18 is designed such thatclips 44 in the locking position shown in FIGS. 4 and 5 cannot be pulledout of the respective clip mount 54 non-destructively. Clips 44 aresurrounded in the locking position by main body 32 of functionalcomponent 10 such that accessibility and thus actuation or release ofclips 44 are not possible either manually or by means of a tool.

In order to be able to realize undercuts 56 in an advantageous technicalmanner in a plastic injection molded part, main body 32 of valve 18 isformed in two parts, wherein main body 32 comprises an upper part 62 anda lower part 64. The parting plane between upper part 62 and lower part64 is visualized in FIG. 4 by the line marked T. In the present case,the demolding of lower part 64 takes place along the mold parting planemarked W, which is located at the level of blocking surface 58.

A second embodiment of an arrangement with a second embodiment of afunctional component 10 is shown in conjunction with FIGS. 6 and 7.Hereinafter, the same reference characters as for the description of thefirst embodiment are used for identical or at least functionallyidentical components to explain this second embodiment and a thirdembodiment.

Functional component 10 shown in FIGS. 6 and 7 is a Venturi nozzle 20.In the present case, Venturi nozzle 20 is clipped by means of a clipconnection to an intake hood 26. Intake hood 26 corresponds to theintake hood 26 shown in FIGS. 2 to 5. At the position (interface) atwhich in the embodiment shown in FIGS. 2 to 5, valve 18 is connected tointake hood 26, in the embodiment shown in FIGS. 6 and 7, Venturi nozzle20 is connected to intake hood 26.

In main body 32 of Venturi nozzle 20, a first flow channel 66 isprovided with a first inlet side 68 and an outlet side 70. The firstinlet side 68 in this case is used to connect to a pressure pipedownstream of a compressor of an exhaust gas turbocharger. Outlet side70 opens directly into intake hood 26. In addition, a second flowchannel 72 is formed with a second inlet side 74, which is connectableto tank vent line 16, which leads to fuel tank 14. Second flow channel72 opens into first flow channel 66. By changing the mass flow throughfirst flow channel 66, which can be controlled and/or regulated, thenegative pressure in second flow channel 72 can be changed, as a resultof which the tank ventilation of fuel tank 14 can be controlled and/orregulated.

At the positions where clips 44 are arranged at valve 18 from FIGS. 2 to5, three clip mounts 76 are formed on main body 32 of Venturi nozzle 20(only two clip mounts 76 are visible in FIGS. 6 and 7), which serve tomount the three clips 44 formed on intake hood 26. Clip mounts 76 arefunctionally identical and realized with the same technical features asclip mounts 54 of valve 18, which is shown in FIGS. 4 and 5. As is clearfrom an overview of FIGS. 6 and 7, clip mounts 76 are formed such thatopposite to an insertion opening 78, a demolding opening 80 extending ininsertion direction E is formed, as a result of which clips 44 stillremain accessible even in their locking position. In order to counteracta loosening of the clip connection, in addition to main body 32, aseparate cover component can be provided which covers demolding openings80 in order to prevent access and actuation of clips 44, in particularfor the purpose of loosening the clip connection.

FIGS. 8 to 12 show a third embodiment of an arrangement with a thirdembodiment of a functional component 10. Functional component 10 shownhere is likewise a Venturi nozzle 20.

Venturi nozzle 20 is constructed substantially identically to Venturinozzle 20 shown in FIGS. 6 and 7, in particular with respect to firstflow channel 66 and second flow channel 72. Venturi nozzle 20 of FIGS. 6and 7 and of FIGS. 8 to 12 therefore function in the same way. Theessential differences of the third embodiment will be discussedhereinafter, which are realized above all in relation to the clipconnection.

In the present case, two clip mounts 82 are formed in the form ofopenings as component 42 for creating a clip connection on intake hood26. As can be clearly seen in FIG. 12, clip mounts 82 each have anundercut 84 with a blocking surface 86. In order to demold theseundercuts 84 with blocking surface 86, in addition to an insertionopening 88 for a clip, a demolding opening 90 is formed extendingtransverse, here perpendicular, to insertion direction E.

FIGS. 10 and 11 show the two clips 92 corresponding to clip mounts 82.In this case, clip bodies 94 of clips 92 each have a width B of 1.25 mmextending transverse to insertion direction E and are formed resilienttransverse to insertion direction E. Clips 92 have a clip head 96 with adetent contour 98 and with an abutment face 100. A cover structure 102is formed integral with the respective clips 92. Cover structure 102 isshown in a top plan view in FIG. 8 and in a view from below in FIG. 11.Cover structure 102 is disposed on the side of clip head 96, which inthe locking position faces demolding opening 90. Cover structure 102 isformed plate-shaped and projects beyond clip head 96 both in insertiondirection E and also transverse thereto.

In a locking position shown in FIG. 9, demolding opening 90 iscompletely closed by means of cover structure 102 so that the respectiveclip 92 is no longer accessible in the locking position via demoldingopening 90 and thus can no longer be actuated without destruction.

The features of the invention disclosed in the present description, inthe drawings, and in the claims can be essential both individually andin any desired combinations for the realization of the invention in itsvarious embodiments. The invention can be varied within the scope of theclaims and in consideration of the knowledge of the skilled artisan.

The invention being thus described, it will be obvious that the same maybe varied in many ways. Such variations are not to be regarded as adeparture from the spirit and scope of the invention, and all suchmodifications as would be obvious to one skilled in the art are to beincluded within the scope of the following claims

What is claimed is:
 1. A functional component for influencing tankventilation of a fuel tank functionally connected to an internalcombustion engine, the functional component comprising: a main body; atleast one flow channel for guiding fluid from an inlet side to an outletside, the at least one flow channel being formed in the main body; andat least one component for creating a clip connection of the functionalcomponent to an intake pipe is formed on the main body, wherein at leastone clip is formed on the main body, the at least one clip having a cliphead with a detent contour, and wherein at least one cover structure isformed on the main body such that a loosening actuation of the at leastone clip is prevented in an inserted locking position.
 2. The functionalcomponent according to claim 1, wherein the main body is formed at leastas part of a Venturi nozzle or a valve or for receiving a Venturi nozzleand/or a valve.
 3. The functional component according to claim 1,wherein at least one clip mount for a corresponding clip disposed on theintake pipe is formed on the main body.
 4. The functional componentaccording to claim 3, wherein the at least one clip mount is formed onthe main body such that the clip connection between the functionalcomponent and the intake pipe is designed as a non-separable connection.5. The functional component according to claim 1, wherein the main bodyis formed in two parts.
 6. An arrangement of a functional component onan intake pipe of an internal combustion engine, the functionalcomponent for influencing tank ventilation of a fuel tank functionallyconnected to the internal combustion engine, wherein at least onecomponent that creates a clip connection is formed on the functionalcomponent and on the intake pipe of the internal combustion engine andwherein the functional component is clipped directly to the intake pipe,wherein a clip is formed on the functional component, wherein the intakepipe has at least one clip mount which includes an insertion opening forreceiving the clip and a demoldinq opening extending transverse to aninsertion direction of the clip, and wherein when the clip is fullyinserted into the insertion opening, so as to be in a locking position,the demolding opening is completely closed by a cover structure disposedon the functional component, such that the clip, when in the lockingposition, is no longer accessible via the demolding opening.
 7. Thefunctional component according to claim 1, wherein the at least onecover structure is provided on a side surface of the clip head, andwherein the at least one cover structure is plate-shaped and projectsbeyond the side surface of the clip head in both an insertion directionof the clip and a direction transverse to the insertion direction. 8.The arrangement according to claim 6, wherein the clip of the functionalcomponent has a clip head with a detent contour, wherein the coverstructure is provided on a side surface of the clip head, and whereinthe cover structure is plate-shaped and projects beyond the side surfaceof the clip head in both the insertion direction of the clip and adirection transverse to the insertion direction.